Hi

OK so 0&0 says it is Vista ready.
With Vista 64 bit this just ain't so.
Vista locks certain files, which 0&0 leaves.
This results in an area that isn't defragged.
This area grows slowly but surely, with continued defragging.
UltimateDefrag, is very good & I did consider this before going for PerfectDisk2008.
Cost being possibly the factor. (Plus I preferred the interface).
Edit: the ease of defragging USB/Flash drive ect, was also something I liked.
However you can get 25% off currently with a free upgrade to
UltimateDefrag2008: *.
This new version is supposedly due very soon.
They have emailed current owners/interested parties.
*What If I Recently Purchased UltimateDefrag?
At the time we release UltimateDefrag 2008, all people who purchased the product in the last 90 days will be entitled to a FREE upgrade to UltimateDefrag 2008.